106 



Isl. The Latitude. 



By 11 circum-meridian altitudes of j3 Orionis, south, 

 combined with 15 altitudes of Polaris, north : 

 latitude of station, - - - 39° 57' 45".9 N. 



Reduction to the dome of the State Capital, — 2".7 



Result — Latitude of the dome of the State Capital at 



Columbus, Ohio, - - - 39°57'43".2N. 



2d. Observations for the Time. 

 Sidereal chronometer No. 2557, fast : 



1st Set. Before the signals. 

 By 7 observations on /3 Geminorum, h. m. s. 



east (at 4/t. 49/71.) - - 1 04 31.96 



By 8 observations on /S Tauri, west (at 



8/i. 5l7W.) - - - 1 04 32.58 



\st Residt. Before the signals — 



Chronometer fast (at 6A. 50m.) 1 04 32.27 h. m. s. 



+ 1 04 32.27 



2d Set. After the signals. 

 By 6 observations on cc Tauri, west 



(at 8h. 32m.) - - 1 04 32.63 



By 4 observations on Leonis, east 



(at 9h. 04m.) - - 1 04 32.32 



2d Result. After the signals — 



Chronometer fast (at 8/i. 48m.) 1 04 32.47 



+ 1 04 32.47 



Result adopted — Chronometer No. 2557, fast of si- 

 dereal time for this station (at Ih. 49m. sidereal), + 1 04 32.37 



The number of observations in each set would have been greater, 

 but that the stars were frequently obscured by a mist that was passing. 



3(Z. The Longitude. 

 The above result for the Columbus time, and the results for the 

 Toledo time, from the observations of the 24th and 26th inst., com- 

 bined with the following electric signals, give us the longitude of the 

 State Capital at Columbus, as follows, viz. — 



